US airline Continental has denied responsibility for a deadly Concorde crash that spelt the end of supersonic travel as its mechanics went on trial in France with French engineers.

Judge Dominique Andreassier read out the charges against the US airline Continental and two of its technical staff who are accused of the manslaughter of 109 people on the plane — most of them German tourists — and four hotel workers on the ground.

The court will decide whether to side with investigators and technical experts who say the crash was caused by a strip of metal that fell off a Continental DC-10 that took off shortly before the Concorde on July 25, 2000.